_______ my book , _______ your book.
| A． This’s; it’s | B．this is; these’re |
| C． That’s ; this’s | D．This is; that’s |
His grandparents used to ________ a walk after dinner, but now they are used to ________ a walk after breakfast.
| A．take, take | B．taking, taking | C．taking, take | D．take, taking |
My sister was ________out at night.
| A．terrified of go | B．worry about going |
| C．come up with going | D．afraid to go |
______ is necessary _______ us ________learn English well.
| A．It, of, to | B．This, of, of | C．It, for, to | D．This, for, to |
You should read _______ the lights _______.
| A．with, on | B．with, opened | C．having, on | D．having, opened |
It’s _______ outside. Put on your thick coat to keep you_______.
| A．enough cold, hot | B．cold enough, warm |
| C．cold enough, warmly | D．enough cold, warm |